1Evaluation of coal seam floor water inrush in Panjiayao Coal Mine based on regular mesh generation and variable weight theoryWU Qiang, LI Fei-fei, LIU Shou-qiang, ZENG Yi-fan1-4,82Risk assessment of water inrush from 12#coal seem roof of Linnancang Coal MineDONG Dong-lin, LIU Jin-guo5-83Scientific and quick rescue for water hazards of coal minesZHAO Su-qi, WU Qiang, YIN Shang-xian9-114Hydrogeology exploration method for water hazard control in lower group coal mining of karst area in Northern China type coal fieldLI Xi-bin12-15,195Treatment technology of water inrush hazard in Fengfeng mining areaWANG Tie-ji16-196Study on water sealing and reinforcement grouting for inclined shaft in Wujiamao Coal MineCUI Xue-dong, CUI Teng-yue, ZHU Hong20-227Ground grouting reconstruction practice for thin limestone aquifer in working face floor in syncline axis areaWEI Da-yong23-26,308Grouting and water sealing technology for new air shaft in Linnancang Coal MineWANG Xue-jun, WANG Kai-fei, WANG Meng27-309Grouting water sealing and reinforcement technology for in inclined shaft of Tianshuipu No. 2 Coal MineCUI Teng-yue, CUI Xue-dong31-3310Grouting treatment for water inrush under complex structure in Xin′an Coal MineWANG Guang-qiang, YANG Heng, XIAO Luo-kun, XU Zuo-rong, XIAO Xiong, DENG Chao-yi, MING Wen-cheng34-3611Application of ABC classification for drilling cost control in Xinjiang Zhundong CoalfieldZHANG Yun-feng, SHEN Jian-jun37-3912Main problems and the countermeasures of water hazard in Wanbei mining areaWU Yu-hua, DUAN Zhong-wen, HU Rong-jie40-42,4613New technology and application of water inrush coefficient method based on GISLIU Shou-qiang, WU Qiang, ZENG Yi-fan, LI Zhe, GONG Hou-jian, Zhang Yi43-4614Environmental geology problems and the treatment technology for coal mines of Hebei ProvinceSUN Wen-jie, JIAO Jian, BAI Xiao-mei, LIU Qing-Zhe, WANG Yi-fan47-5015Application of precise basic hydrogeological work in water prevention and control in coal mine under complex geological conditionXU Lian-li, LI Lin-ji, SHI Yong-li, WANG Yin-xi51-55,5916Comprehensive evaluation for water hazard risk in coal seam roof of Jixian Mining Field and the preventive countermeasuresZHANG Xiao-ming, WU Qiang, LIU Hong-yan, FENG Shu-shun, WANG Guang-di56-5917Feasibility analysis on upward mining for No. 5 coal seam in No. 2 north district of Donghuantuo Coal Mine, KailuanMA Ya-jie, ZHENG Yan, LIU Bo, LIU Jin-guo60-6318Discussion on safe mining scheme selection for upper working face under the upper limit of loose aquiferFU Xiang, HU Rong-jie64-6619Discussion on mine hydrogeological type classification in Daping Coal MineTANG Fei, GE Kai-hua67-7020Influence evaluation and control of water hazard in Changping Coal MineHU Yuan, DONG Dong-lin, ZHANG Jian71-74 